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John Marriott is one of 16 diagnostic radiologists practicing in Texas City, Texas .
John Marriott practices with Singleton Associates PA.
Registry record (NPPES)
NPI
1134102668
Type
Type 1 · Individual
Primary taxonomy
Radiology, Diagnostic Radiology · 2085R0202X
Address on file
62 Grogans Point Rd The Woodlands, TX 77380-2620 (281) 292-7227
Enumerated
Nov 29, 2005
Record last updated
Oct 3, 2007
License states listed
TX
Medicare (CMS)
Enrollment
Medicare-enrolled in TXDiagnostic Radiology
Revalidation due
No date set by CMS
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Part D prescribing
Procedure volumes by CPT code
Group affiliations and colleagues
Full enrollment history
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Practice locations
6801 Emmett F Lowry Expy Mainland Medical Center
Texas City , TX 77591
(713) 461-3573
More diagnostic radiologists in Texas City
Updated August 2026. Practice locations and specialty come from the CMS Doctors and Clinicians file, the registry record from NPPES, and enrollment from CMS Medicare enrollment files. NPI records are corrected at the source, through NPPES.
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